What is polar covalent bond? Explain with example.

Whate are polar and None Polar convalent bond explain with example.

What is Covalent hydride ? Explain with an example.

What is a pi bond ? Explain with example.

What is covalent bond ? Explain why the covalent bonds between , oxygen and hydrogen atoms in H_2O molecule are polar.

Define covalent bond with an example.